Seiko Cal. 4440 - 487

Seiko 4440-487

The 4440-487 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4440 caliber with 35j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-76b973593710]

Also known as: Samurai, Baby Tuna

Specifications

Movement
Spring Drive
Case Material
PVD Black
Case Width
45mm
Case Thickness
9.7mm
Lug Width
19mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
140m
Dial Color
Black
Jewels
35j
Frequency
28,800 bph
Power Reserve
40 hours
Year
1989

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seikata-wm-76b973593710